Frequencies for first 10,000 rows of m_harm variable in vehicle dataset :

       most |
    harmful |
      event |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      1,408       14.08       14.08
          2 |        107        1.07       15.15
          3 |         35        0.35       15.50
          5 |         68        0.68       16.18
          7 |          3        0.03       16.21
          8 |      1,339       13.39       29.60
          9 |        254        2.54       32.14
         10 |         19        0.19       32.33
         11 |         19        0.19       32.52
         12 |      5,045       50.45       82.97
         14 |         72        0.72       83.69
         15 |         66        0.66       84.35
         16 |          1        0.01       84.36
         17 |         22        0.22       84.58
         18 |         35        0.35       84.93
         19 |         17        0.17       85.10
         20 |          4        0.04       85.14
         21 |         24        0.24       85.38
         23 |         15        0.15       85.53
         24 |         79        0.79       86.32
         25 |         46        0.46       86.78
         26 |          2        0.02       86.80
         30 |        186        1.86       88.66
         31 |         30        0.30       88.96
         32 |         28        0.28       89.24
         33 |         27        0.27       89.51
         34 |         29        0.29       89.80
         35 |         65        0.65       90.45
         38 |         38        0.38       90.83
         39 |         37        0.37       91.20
         40 |          2        0.02       91.22
         41 |          3        0.03       91.25
         42 |        623        6.23       97.48
         43 |         27        0.27       97.75
         44 |          1        0.01       97.76
         45 |          2        0.02       97.78
         46 |         18        0.18       97.96
         52 |         13        0.13       98.09
         53 |          5        0.05       98.14
         54 |        138        1.38       99.52
         55 |          1        0.01       99.53
         57 |          1        0.01       99.54
         58 |          6        0.06       99.60
         59 |         26        0.26       99.86
         72 |          1        0.01       99.87
         99 |         13        0.13      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 22 Oct 2016